86761878 has 16 divisors (see below), whose sum is σ = 198312960. Its totient is φ = 24789096.

The previous prime is 86761877. The next prime is 86761889. The reversal of 86761878 is 87816768.

It is a self number, because there is not a number n which added to its sum of digits gives 86761878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86761877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032838 + ... + 1032921.

It is an arithmetic number, because the mean of its divisors is an integer number (12394560).

Almost surely, 2^86761878 is an apocalyptic number.

86761878 is an abundant number, since it is smaller than the sum of its proper divisors (111551082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86761878 is a wasteful number, since it uses less digits than its factorization.

86761878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065771.

The product of its digits is 903168, while the sum is 51.

The square root of 86761878 is about 9314.6056277225. The cubic root of 86761878 is about 442.7001284412.

The spelling of 86761878 in words is "eighty-six million, seven hundred sixty-one thousand, eight hundred seventy-eight".